Navigation Links
Physicists discover important step for making light crystals
Date:4/9/2009

nths of a Kelvin. Researchers have since produced condensates as cold as 500 picokelvin, or 500 trillionths of a Kelvin.

Ho pioneered theoretical studies of BEC. He has made a wide range of contributions in the field, for which he was awarded the 2008 Lars Onsager Prize of the American Physical Society. Recently, he has worked on the physics of cold atoms in optical lattices, and has pointed out the amount of cooling needed to meet the DARPA challenge.

The new method cools the atoms in an optical lattice by literally squeezing the heat out of them and into a surrounding BEC, which acts as a heat sink.

Ho has already shared the cooling method with the three teams in recent DARPA Meetings. The teams are led by the Massachusetts Institute of Technology, Rice University, and the University of Maryland. Each team is approaching the problem a little differently, and Ho is a member of two of the teams: Rice and Maryland.

All are working to create an optical lattice -- a three-dimensional cubic structure made of laser light which contains many smaller cubes, or "cells," inside it. Each cell in the lattice is supposed to contain one atom.

If the researchers succeed, they will have made an adjustable crystal out of laser light, and will be able to emulate different solid materials.

Physicists think of heat in terms of entropy, or disorder, Ho explained. His cooling method involves boosting the laser intensity to force the atoms into a very orderly arrangement.

The researchers are trying to trap atomic particles called fermions, which have an internal angular momentum called spin. When fermions are hot, they spin chaotically. The hotter the atoms, the more disordered these spins become.

Ho and Zhou discovered that by raising the laser intensity, researchers could compress the fermions into a so-called "band insulator," where each cell in the lattice contains two fermions instead of one. Each fermion will
'/>"/>

Contact: Tin-Lun Ho
Ho.6@osu.edu
614-292-2046
Ohio State University
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. U of T physicists squeeze light to quantum limit
2. McGill physicists find a new state of matter in a transistor
3. Physicists tweak quantum force, reducing barrier to tiny devices
4. UBC physicists develop impossible technique to study and develop superconductors
5. Discovery by UC Riverside physicists could enable development of faster computers
6. New unifying theory of lasers advanced by physicists
7. Physicists saved from drowning in complexities of wetting theory
8. UM physicists show electrons can travel over 100 times faster in graphene than in silicon
9. Physicists discover how fundamental particles lose track of quantum mechanical properties
10. Physicists discover gold can be magnetic on the nanoscale
11. Sheet of carbon atoms acts like a billiard table, physicists find
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/6/2015)... Mass. (PRWEB) , ... July 06, 2015 , ... ... Worcester Polytechnic Institute (WPI), offers new insights into how virulent fungi adapt through ... their spread, and how that battle leaves them temporarily weakened. These insights may ...
(Date:7/6/2015)... SANTA BARBARA, Calif. , July 6, 2015 /PRNewswire/ ... virus that is integrated into their chromosomes. These individuals ... to a new study published in one of the ... Laval Faculty of Medicine in Canada.  Photo ... known as human herpesvirus 6 (HHV-6) causes roseola (also ...
(Date:7/6/2015)... , ... July 06, 2015 , ... ... and cheaper molecular diagnostic tests are key drivers of the global molecular diagnostics ... personalized medicine and the introduction of new companion diagnostic tests will increase demand ...
(Date:7/6/2015)...  Viveve Medical, Inc. ("Viveve") (OTCQB: VIVMF), a company focused on ... Chief Executive Officer, and Scott Durbin , Viveve,s Chief ... 2015. , , , DATE:    , , ... TIME:     , , , 12:15 PM EDT , ... http://tinyurl.com/viveve   ,    ...
Breaking Biology Technology:Worcester Polytechnic Institute Co-directs Study That Provides New Insights into the Genetics of Drug-Resistant Fungal Infections 2Worcester Polytechnic Institute Co-directs Study That Provides New Insights into the Genetics of Drug-Resistant Fungal Infections 3Worcester Polytechnic Institute Co-directs Study That Provides New Insights into the Genetics of Drug-Resistant Fungal Infections 4Inherited Herpes Virus Increases the Risk of Angina Reports HHV-6 Foundation 2Inherited Herpes Virus Increases the Risk of Angina Reports HHV-6 Foundation 3Demand for Personalized Medicine, Innovative Molecular Diagnostic Tests Spurring Big Growth, According to BCC Research 2Demand for Personalized Medicine, Innovative Molecular Diagnostic Tests Spurring Big Growth, According to BCC Research 3Viveve to Webcast Live at VirtualInvestorConferences.com 2Viveve to Webcast Live at VirtualInvestorConferences.com 3
... April 30 Today John C. Lechleiter,Ph.D., president ... LLY ), provided,insight into the future of ... players, significant investments in the sector are rewarded. ... a gathering of,policymakers, business leaders and academics, under ...
... 30 Intense global competition,and today,s networked economy ... Alliances as the strategy of the next century. ... it to be sustainable and,mutually beneficial., How ... study on Forging,Partnerships That Work is a roadmap ...
... Inc. (Nasdaq: PBIO ) today announced that the ... 2008 financial results and to,provide a business update. Anyone ... through a live web-cast. The,teleconference and web-cast information is ... Time: 9:00 a.m. Eastern Time (ET), To attend ...
Cached Biology Technology:Lilly CEO Urges Policy Prescriptions to Help Ensure Public and Private Biotech Investments Generate Dividends and U.S. Job Growth 2Lilly CEO Urges Policy Prescriptions to Help Ensure Public and Private Biotech Investments Generate Dividends and U.S. Job Growth 3Biopharmaceutical Alliances: Forging Partnerships That Work 2Pressure BioSciences, Inc. to Discuss First Quarter 2008 Financial Results and Provide Business Update 2
(Date:6/16/2015)... , June 16, 2015 Fingerprint Cards ... communicated that it will amount to at least 340 MSEK ... to the rapid increase in market growth and orders received ... communicated guidance that revenue for 2015 will exceed 1,500 MSEK ... to approximately 2,200 MSEK. Due to receipt of ...
(Date:6/15/2015)... 15, 2015 A new report [ ... the majority of US consumers using mobile banking applications want ... as fingerprint and voiceprint, instead of having to prove who ... Telstra,s " Mobile Identity   -   The Fusion of ... smartphones now the primary channel used by Gen X and ...
(Date:6/12/2015)... June 12, 2015  Securus Technologies, a leading ... for public safety, investigation, corrections and monitoring, announced ... to electronically capture, analyze and identify participants of ... methods. This system can: ... enrollment and subsequent sign-on process is actually the ...
Breaking Biology News(10 mins):Fingerprint Cards Raises the Revenue Guidance for Q2 2015 and for the Full Year 2015 2Fingerprint Cards Raises the Revenue Guidance for Q2 2015 and for the Full Year 2015 3One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 2One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 3One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 4Securus Announces Patent Issued for Authorized Presence Verification During Video Visitation 2
... skin. Cancer is not a static disease but during ... defences adapting to new environmental circumstances, protecting against chemotherapy ... Until now little was known about the mechanisms ... is a particularly intriguing way in which a tumour ...
... of carbon in the world,s oceans, which cover 70 ... climate cycles, with many questions remaining unanswered. Between 200 ... "twilight zone" where insufficient sunlight penetrates for microorganisms to ... resident at these depths capture carbon dioxide that they ...
... of spring-run Chinook salmon in California by the end ... at UC Davis, the Stockholm Environment Institute and the ... for managing water resources to protect the salmon runs, ... Thompson, director of the Center for Aquatic Biology and ...
Cached Biology News:Why cancer cells change their appearance? 2Up from the depths: How bacteria capture carbon in the 'twilight zone' 2Warming streams could be the end for salmon 2
Clarin Mounting Medium (Permanent environmentally safe mounting medium for general histology & cytology use)...
... Rabbit polyclonal to JAK2 (phospho ... tested applications). Antigen: ... JAK2 around the phosphorylation site of ... Entrez Gene ID: ...
... Perm Buffer III is ... fixation of PBMCs (or ... staining for intracellular kinases ... simultaneously. Applications: Intracellular ...
Cytofix/Cytoperm Kit 250 Tests...
Biology Products: